Problem (5) A 140 lb pilot of an airplane executes a vertical loop which in part follows the path of a "four-leaved rose" = (−400 cos 2thetatheta) ft, where thetatheta is measured in radians. If the pilot experiences weightlessness at point A while flying at a constant velocity, determine the speed of the airplane. Does your answer depend on the weight of the pilot?

Give heat transfer applications for the following, (i) gas turbines (propulsion) ) gas turbines (power generation). (iii) steam turbines. (iv) combined heat and power (chp). (v) automotive engines

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?